[Event "Simul simul"] [Site "https://lichess.org/KNzS9pPm"] [Date "2023.09.11"] [White "Zugzwang_TV"] [Black "OTTOTT"] [Result "1-0"] [UTCDate "2023.09.11"] [UTCTime "17:49:46"] [WhiteElo "2737"] [BlackElo "1500"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "600+3"] [ECO "A00"] [Opening "Anderssen's Opening"] [Termination "Normal"] [Annotator "lichess.org"] 1. a3 { A00 Anderssen's Opening } Nf6 2. b4 d5 3. Bb2 e6 4. e3 Nbd7 5. Nf3 Bd6 6. c4 dxc4 7. Bxc4 O-O 8. d4 c6 9. O-O a5 10. b5 Nb6 11. Be2 cxb5 12. Bxb5 Bd7 13. Nc3 Nbd5 14. Bxd7?! { (0.12 → -0.61) Inaccuracy. Qd3 was best. } (14. Qd3 Nxc3 15. Bxc3 Bxb5 16. Qxb5 Qd7 17. Qxd7 Nxd7 18. a4 Rfc8 19. Bd2 f6 20. Rfb1 b6) 14... Nxc3 15. Bxc3 Qxd7 16. a4 Ne4 17. Qb3?! { (-0.44 → -1.54) Inaccuracy. Be1 was best. } (17. Be1) 17... Rac8?? { (-1.54 → 1.26) Blunder. b5 was best. } (17... b5) 18. Bxa5 f6 19. Rfc1? { (1.93 → 0.38) Mistake. Nd2 was best. } (19. Nd2 Nxd2) 19... Rxc1+ 20. Rxc1 Rc8? { (0.45 → 2.04) Mistake. Ra8 was best. } (20... Ra8 21. Be1) 21. Rxc8+ Qxc8 22. g3?! { (2.00 → 1.33) Inaccuracy. Nd2 was best. } (22. Nd2 Nxd2) 22... Nd2?? { (1.33 → 7.96) Blunder. Bf8 was best. } (22... Bf8) 23. Nxd2 Qc1+ 24. Kg2 b6? { (8.06 → Mate in 11) Checkmate is now unavoidable. Qc6+ was best. } (24... Qc6+ 25. e4) 25. Bxb6? { (Mate in 11 → 9.97) Lost forced checkmate sequence. Qxe6+ was best. } (25. Qxe6+ Kf8 26. Qxd6+ Kf7 27. Qd7+ Kg6 28. Qe8+ Kh6 29. g4 g5 30. Bb4 Qc6+ 31. Qxc6 Kg7) 25... Qxd2 26. a5 f5? { (9.35 → Mate in 9) Checkmate is now unavoidable. Kf7 was best. } (26... Kf7 27. a6) 27. Qxe6+ Kf8 28. Qxd6+ Kg8 29. Qe6+ Kf8 30. Bc5# { White wins by checkmate. } 1-0